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Contd: querying underlying ontologies structure in LOD

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Sun, 14 Jun 2009 09:24:56 -0700
Message-ID: <4A352458.2050509@openlinksw.com>
CC: "रविंदर ठाकुर (ravinder thakur)" <ravinderthakur@gmail.com>, public-lod@w3.org
Kingsley Idehen wrote:
> रविंदर ठाकुर (ravinder thakur) wrote:
>> hello friends
>> is there a way in LOD data to query for underlying ontology structure ?
>> eg. say i want to find some information about "population of 
>> australia" from LOD data. i can figure out that australia is a 
>> country by many different means but before resolving this query i 
>> would like to know from LOD if a country does have population 
>> property/predicate or not. this is to filter out queries like 
>> "pupulation of chairs". is there a way in LOD to query if the 
>> countries ( or its class type) has population attribute before moving 
>> ahead to find the answer to query ?
>> thanks
>> ravinder
> Ravinder,
> Using LOD Cloud Cache instance at: <http://lod.openlinksw.com> I was 
> able to use pattern: Australia Population, to produce: 
> http://lod.openlinksw.com/fct/facet.vsp?cmd=load&fsq_id=3032  (I just 
> use "Type" and "Property" filtering on the initial results). You will 
> notice there are properties from DBpedia and Geonames data spaces 
> associated with the pattern :-)
Of course you could have also just gone to the "URI Lookup (by Label)" 
and then types in: population. The result would be an auto-complete 
style list of all Classes, Prorperties, and Instance Data URIs that have 
pattern: population, in their labels :-)



Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Sunday, 14 June 2009 16:25:37 UTC

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